Vaporizer-burner



Sept. 1.9, 1939. M. ERLACH 24,173,434

VAPORI ZER-BURNER Filed 001;. 4, 1957 Life/c fof.' '7i' hie S Patented Sept. 19, 1939 VAPORIZER-BURNER.

Moritz `Erlach, Melk, Austria, assigner to Oswald Erlach, Melk,

Austria, and Otto Spillern,

.Abinger Dorking, Surrey, England Application October 4, 1937, Serial No. 167,287 VInjAustria April 9, 1937 6 Claims.

'Ihis invention relates to improvements in vaporizer-burners, provided with twovhollow members, which are in communication Vwith one another by means of a pipeone of said `hollow 5 members .being connected with .the fuel supply pipe, whilethe other hollow member isiurnished with Ygas nozzles.

The present .invention has for `its object to improve the vaporizer-burner particularly for the use of heavy oils.

According to the present invention, this object is attained in `that the burner, vfurnished with gas-nozzles, is .arranged Within anoil-compartment, which is attached to an oil-piping and provided with atomizer-,nozzles which are located directlyv above the gas-nozzles of the burner and through which escapes thegas leaving the gas-nozzles, so that the oil surrounding the gasnozzles is fed to the ame in an atomized con- 20 dition.

Inorder to .pre-heat the `heavy oil, it is of particular advantageto pass the .discharge piping of the compartment, provided with atomizernozzles, through the Vaporizer connected with the oil-supply pipe, a part of the supplied oil being vaporized in said vaporizer,;while the other part thereof is atomized.

Some modes of carrying out the present invention are illustrated,diagrammatically and by way of example on the accompanying sheet of drawings in which Fig. l illustrates partly in sectiona vaporizerburner for heavy fuels.

Fig. 2 is a modified construction of a burner, g5 partly in` section.

Fig. 3 is a part-sectional elevationof a modified construction of a vvaporizer-burner for tWo different fuels.

Fig. 4 illustrates a hearthor stove-plate, provided with a. vaporizer-burner.

The vaporiZer-burner illustrated in Fig. 1 comprises a vaporizer I and 4a burner 2, which preferably are constructed in the shape of cylindric hollow members. The vaporizer I is secured by a bracket, fixed to its front plate 5, for instance to the bottom side of a heating plate I1, which is adapted to be tted into the opening of the stove-plate in place of the stove rings. An oil-supply pipe 6 is connected with the Vaporizer ,0 i .and a pipe, attached to the side-wall of the vaporizer, establishes communication between the latter .and the burner 2, which is arranged Within an oil compartment I4, located below said vaporizer. The oil may rise within the vaporizer 5 to such an extent only, until it ows into the oil compartment I4 by way of an overflow pipe 3, extending practically-over the entire length of the vaporizer, and through a pipe-bend i3, which is in communication with said overflow pipe and with the oil compartment I4, surrounding the 5 burner 2. Therefore the oil in the vaporizer I ows to the burner 2 and is there atomized. A spiral-wound screen 4 is arranged in the burner 2 which, on its periphery, is provided with a gasnozzle 9. The oil-compartment I4 is provided 10 with an .atomizer-nozzle I5, which is located just abovefthe gas-nozzles 9 of the burner 2. The downward bent end I2 of the overflow pipe 3 terminates close above the floor of the vaporizer I, so that no gas, but oil only may pass into the oil-compartment I4.

The vaporizer-burner is connected with the oil-reservoir I0 by means of a pipe 6, whichis adapted to be cut 01T or controlled by means of .a needle Valve I I, so that the desired quantityv of oil may be supplied to the vaporizer I. In the vaporizer l, the oil rises to a level controlled by the overflow .pipe .3 and also flows off by way. of the bend I 3 into the oil-compartment I4. The needle valve II is kept open, until oil leavesV b way of the atomiZer-nozzle I5 and ows down Y' intoasight feed cup, which is disposed below the burner but is not illustrated in the drawing. This operation may be watched through the open door of the stove and it is stopped by. closing the needle valve II. Now the oil contained inV the sight feed cupvis used for the preliminary heating of the Vaporizer I. In view of this procedure, the oil contained in the vaporizer is vaporized and supplied to the burner 2. As soon as a satisfactory generation of gas is reached, the oil-supply to the vaporizer is started again and the gas', .leaving through thegas-nozzle 9, takes with it particles of the oil contained in the compartment I4, surrounding the gas-noz- 40 zle 9, and blows the atomized oil-particles out of the atomiZer-nozzle I5.` The burning'gas, saturated with the oil-particles, develops a very great heat and it is possible to use the heaviest oil.

As shown in Fig. 2, in order to distribute the '45 voil within the vaporizer, the latter may ber provided with an intermediate wall I8, `so thatY a preliminary chamberis formed in the vaporizer. Thesupply-pipe 6 passes into the `topeof .said 50 chamber, while a small hole I9 in the intermediate wall establishes communication between the preliminary chamber and the vaporizer-compartment. The overow pipe 3, passing through the vaporizer-compartment, communicates with said chamber substantially in the middle of the intermediate wall. The device operates in the same way as the overflow arrangement shown in Fig. l.

The vaporizer-burner illustrated in Fig. 3, may be operated by two different fuels. For this object for instance a pure and light liquid fuel is fed into the vaporizer I by way of the pipe 6, while the compartment I4 is charged with a heavier liquid fuel for vaporization by way `of a separate pipe I6. The pipe I5 may pass directly into the oil-compartment I4 or, for the object of preheating, it may be led through the vaporizer I before being attached to said oilcompartment. The vaporizer-burner operates practically in the same way as the burner shown in Fig. l, the only difference being, that the supply of both fuels is controlled by two separate needle-valves and therefore care is taken, that mainly the heavy oil is used. Further in all constructions, the vaporizer-burner is secured to the bottom side of a heating plate at such a distance, that the gas, leaving the nozzle at a greater or smaller pressure, does not extinguish the flame and that the oil reaches the flames in a thoroughly atornized state. Further, the vaporizer is not located directly above the burner, but is disposed at the side thereof, so that the vaporizer is not subjected directly to the ames but is heated by the heat of radiation.

l. vaporizer-burner comprising in combination a hollow vaporizer, a liquid fuel supply pipe attached to said vaporizer, a hollow burner, a conduit attached to and establishing communication between said vaporizer and said burner, a gas nozzle arranged on said burner, a liquid fuel compartment enclosing said burner and said gas nozzle, an atomizer nobble on said liquid fuel compartment and arranged directly in front of said gas nozzle, so that the gas escaping from said gas nozzle withdraws fuel from said fuel compartment and leaves the fuel compartment by way of said atomizer nozzle, and means attached to said fuel compartment feeding liquid fuel into said fuel compartment.

2. Vaporizer-burner comprising in combination a hollow vaporizer, a liquid fuel supply pipe attached to said vaporizer, a hollow burner, a conduit attached to and establishing communication between said vaporizer and said burner, a gas nozzle arranged on said burner, a screen in said burner for retaining impurities before the contents of said burner reaches said gas nozzle, a liquid fuel compartment enclosing said burner and said gas nozzle, an atomizer nozzle on said liquid fuel compartment and arranged directly in front of said gas nozzle, so that the gas escaping from said gas nozzle withdraws fuel from said fuel compartment and leaves the fuel compartment by way of said atomizer nozzle, and means attached to said fuel compartment feeding liquid fuel into said fuel'compartment.

3. vaporizer-burner comprising in combination a hollow vaporizer, a liquid fuel supply pipe attached to said vaporizer, a hollow burner, a conduit attached to and establishing communication between said vaporizer and said burner, a gas nozzlearranged on said burner, a liquid fuel compartment enclosing said burner and said gas nozzle, an atomizer nozzle on said liquid fuel compartment and arranged directly in front of said gas nozzle, so that the gas escaping from said gas nozzle withdraws fuel from said fuel compartment and leaves the fuel compartment by way of said atomizer nozzle, a liquid fuel pipe attached to said fuel compartment and passing through said vaporizer at a distance from the floor of the vaporizer, said distance corresponding to the lowest fuel level, and an opening in the portion of said fuel pipe passing through said vaporizer, so that a part of the liquid fuel rising within the vaporizer may escape into said fuel compartment.

4. Vaporizer-burner comprising in combination a hollow vaporizer, a liquid fuel supply pipe attached to said vaporizer, a hollow burner, a conduit attached to and establishing communication between said vaporizer and said burner, a gas nozzle arranged on said burner, a liquid fuel compartment enclosing said burner and said gas nozzle, an atomizer nozzle on said liquid fuel compartment and arranged directly in front of said gas nozzle, so that the gas escaping from said gas nozzle withdraws fuel from said fuel compartment and leaves the fuel compartment by way of said atomizer nozzle, and a liquid fuel pipe attached to said fuel compartment and passing outside the vaporizer for preheating the fuel.

5. Vaporizer-burner comprising in combination a hollow vaporizer, a liquid fuel supply pipe attached to said vaporizer, a hollow burner, a conduit attached to and establishing communication between said vaporizer and said burner,

a gas nozzle arranged on said burner, a liquid fuel compartment enclosing said burner and said gas nozzle, an atomizer nozzle on said liquid fuel compartment and arranged directly in front of said gas nozzle, so that the gas escaping from said gas nozzle withdraws fuel from said fuel compartment and leaves the fuel compartment by way of said atomizer nozzle, and a liquid fuel pipe with a downward bent end attached to said fuel compartment and passing into said vaporizer for determining the fuel level in said vaporizer, said downward bent pipe-end terminating in said vaporizer below said liquid fuel pipe.

6. vaporizer-burner comprising in combination a hollow vaporizer, a partition dividing said vaporizer into a vaporizing chamber and into a preliminary chamber, a port in said partition at the bottom thereof establishing communication between the two chambers of the vaporizer, an opening substantially in the middle of said partition, an overflow pipe arranged in said Vaporizing chamber and fitted into said opening, a liquid fuel supply pipe attached to said vaporizer and passing into said preliminary chamber, a hollow burner, a conduit attached to and establishing communication between said vaporizing chamber and said burner, a gas nozzle arranged on said burner, a liquid fuel compartment enclosing said burner and said gas nozzle, and an atomizer nozzle on said liquid fuel compartment and arranged directly in front of said gas nozzle, so that the gas escaping from said gas nozzle withdraws fuel from said fuel compartment by way of said atomizer nozzle.

MORITZ ERLACH. 

